js导出table中的EXCEL总结
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导出EXCEL通常是用php做，可是项目中，有时候PHP后端project师返回的数据不是我们想要的，作为前端开发project师，把相应的数据编号转换为文字后，展示给用户。可是。需求要把数据同一时候导出一份EXCEl。
无奈之下，我仅仅能用js导出table中的数据了。
导出EXCEl通常是自己人用的。所以用js导出，由于js导出EXCEL普通情况下兼容性不是非常好，非常多仅仅是兼容IE浏览器，还要设置在工具栏中进行设置才干导出，由于会相对照较烦。以下介绍几种方法：
一、js导出EXCEl带单元格合并【已验证，比較好用】
// javascript Document //调用方法 // var test=new PageToExcel("data",0,255,"測试.xls");//table id , 第几行開始，最后一行颜色 ，保存的文件名称 // test.CreateExcel(false); // test.Exec(); // test.SaveAs(); // test.CloseExcel(); //LastRowColor 0黑色 255红色 // function PageToExcel(TableID,FirstRow,LastRowColor,SaveAsName){ this.lastRowColor=LastRowColor==""?0:LastRowColor; var today=new Date(); this.saveAsName=(SaveAsName==""?today.getYear()+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日.xls":SaveAsName); this.tableId=TableID; this.table=document.getElementById(this.tableId);//导出的table 对象 this.rows=this.table.rows.length;//导出的table总行数 this.colSumCols=this.table.rows[0].cells.length;//第一行总列数 this.fromrow=FirstRow; this.beginCol=0; //起始列数 this.cols=this.colSumCols; this.oXL=null; this.oWB=null; this.oSheet=null; this.rowSpans=1; //行合并 this.colSpans=1; //列合并 this.colsName={0:"A",1:"B", 2:"C", 3:"D", 4:"E", 5:"F", 6:"G", 7:"H", 8:"I",9:"J", 10:"K", 11:"L", 12:"M", 13:"N", 14:"O", 15:"P", 16:"Q", 16:"R" ,18:"S", 19:"T", 20:"U", 21:"V", 22:"W", 23:"X", 24:"Y", 25:"Z"}; } PageToExcel.prototype.DeleteExcelCols=function(NotShowColList){//数组NotShowColList //this.notShowColList=NotShowColList;//不显示列集合,1,2,3,1 //删除excel中的列 var m=0; for(var i=0;i<NotShowColList.length;i++){ if(i>0){ m++; } var temp=NotShowColList[i]- m; var index=this.colsName[temp]; this.oSheet.Columns(index).Delete;//删除 } m=0; } PageToExcel.prototype.CreateExcel=function(ExcelVisible) { try{ this.oXL = new ActiveXObject("Excel.Application"); //创建应该对象 this.oXL.Visible = ExcelVisible; this.oWB = this.oXL .Workbooks.Add();//新建一个Excel工作簿 this.oSheet = this.oWB.ActiveSheet;//指定要写入内容的工作表为活动工作表 //不显示网格线 this.oXL.ActiveWindow.DisplayGridlines=false; }catch(e){ alert("请确认安装了非绿色版本号的excel。"+e.description); CloseExcel(); } } PageToExcel.prototype.CloseExcel=function() { this.oXL.DisplayAlerts = false; this.oXL.Quit(); this.oXL = null; this.oWB=null; this.oSheet=null; } PageToExcel.prototype.ChangeElementToLabel=function (ElementObj){ var GetText=""; try{ var childres=ElementObj.childNodes; }catch(e){ return GetText} if(childres.length<=0) return GetText; for(var i=0;i<childres.length;i++){ try{if(childres[i].style.display=="none"||childres[i].type.toLowerCase()=="hidden"){continue;}} catch(e){} try{ switch (childres[i].nodeName.toLowerCase()){ case "#text" : GetText +=childres[i].nodeValue ; break; case "br" : GetText +="\n"; break; case "img" : GetText +=""; break; case "select" : GetText +=childres[i].options[childres[i].selectedIndex].innerText ; break; case "input" : if(childres[i].type.toLowerCase()=="submit"||childres[i].type.toLowerCase()=="button"){ GetText +=""; }else if(childres[i].type.toLowerCase()=="textarea"){ GetText +=childres[i].innerText; }else{ GetText +=childres[i].value; } break; default : GetText += this.ChangeElementToLabel(childres[i]); break; } }catch(e){} } return GetText; } PageToExcel.prototype.SaveAs=function (){ //保存 try{ this.oXL.Visible =true; var fname = this.oXL.Application.GetSaveAsFilename(this.saveAsName, "Excel Spreadsheets (*.xls), *.xls"); if(fname){ this.oWB.SaveAs(fname); this.oXL.Visible =false; } }catch(e){}; } PageToExcel.prototype.Exec=function() { //寻找列数，考虑到第一行可能存在 for (var i=0; i<this.colSumCols;i++) { var tmpcolspan = this.table.rows(0).cells(i).colSpan; if ( tmpcolspan>1 ) { this.cols += tmpcolspan-1; } } //定义2维容器数据。1：行；2：列；值（0 能够填充，1 已被填充） var container=new Array(this.rows); for (var i=0;i<this.rows;i++) { container[i]=new Array(this.cols); for (j=0;j<this.cols;j++) { container[i][j]=0; } } //将全部单元置为文本，避免非数字列被自己主动变成科学计数法和丢失前缀的0 this.oSheet.Range(this.oSheet.Cells(this.fromrow+1,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).NumberFormat = "@"; // 循环行 for (i=0;i<this.rows;i++){ //循环列 for (j=0;j<this.cols;j++){ //寻找開始列 for (k=j;k<this.cols;k++){ if (container[i][k]==0) { this.beginCol=k; k=this.cols; //退出循环 } } //try{ //赋值 //此处相应跟改 依据 标签的类型，替换相关參数 this.oSheet.Cells(i+1+this.fromrow,this.beginCol+1).value = this.ChangeElementToLabel(this.table.rows(i).cells(j)); //计算合并列 try{ this.colSpans = this.table.rows(i).cells(j).colSpan; }catch(e){ this.colSpans=0 } if (this.colSpans>1) { //合并 this.oSheet.Range(this.oSheet.Cells(i+1+this.fromrow,this.beginCol+1),this.oSheet.Cells(i+1+this.fromrow,this.beginCol+this.colSpans)).Merge(); } //将当前table位置填写到相应的容器中 for (k=0; k<this.colSpans;k++) { container[i][this.beginCol+k]= 1; } // 计算合并行 try{ this.rowSpans = this.table.rows(i).cells(j).rowSpan; }catch(e){ this.rowSpans = 0; } if (this.rowSpans>1) { //行合并 this.oSheet.Range(this.oSheet.Cells(i+1+this.fromrow,this.beginCol+1),this.oSheet.Cells(i+this.rowSpans+this.fromrow,this.beginCol+this.colSpans)).Merge(); //将当前table位置填写到相应的容器中 for (k=1; k<this.rowSpans;k++) { //因为第0行已经被colSpans相应的代码填充了，故这里从第1行開始 for (l=0;l<this.colSpans;l++) { container[i+k][this.beginCol+l]=1; } } } //假设開始列＋合并列已经等于列数了，故不须要再循环html table if (this.beginCol+this.colSpans>=this.cols) j=this.cols; } if(i==0) { //标题栏 this.oSheet.Range(this.oSheet.Cells(1,1), this.oSheet.Cells(1,1)).Font.Size=20; this.oSheet.Range(this.oSheet.Cells(1,1), this.oSheet.Cells(1,1)).Font.Bold = true; this.oSheet.Range(this.oSheet.Cells(1,1), this.oSheet.Cells(1,1)).HorizontalAlignment = -4108; //居中 this.oSheet.Range(this.oSheet.Cells(1,1), this.oSheet.Cells(1,1)).Rows.RowHeight = 40; } //自己主动调整行高 } //最后一行是否空色 try{ this.oSheet.Range(this.oSheet.Cells(this.rows,1), this.oSheet.Cells(this.rows,1)).Font.Color=this.lastRowColor; }catch(e){} this.oSheet.Range(this.oSheet.Cells(this.fromrow+2,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).Rows.RowHeight=20; this.oSheet.Range(this.oSheet.Cells(this.fromrow+2,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).Font.Size=10; //自己主动换行 this.oSheet.Range(this.oSheet.Cells(this.fromrow+2,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).WrapText = true; //自己主动调整列宽 this.oSheet.Range(this.oSheet.Cells(this.fromrow+1,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).Columns.AutoFit(); //点虚线 this.oSheet.Range(this.oSheet.Cells(this.fromrow+1,1), this.oSheet.Cells(this.fromrow+this.rows,this.cols)).Borders.LineStyle = -4118; return this.rows; }
注意：要改IE浏览器安全设置
二、js导出table中的EXCEL.该方法仅仅能在IE内核下执行。相比其它方法的优点是，不
用再设置什么属性或者安装什么插件了，思路例如以下：
function getXlsFromTbl(inTblId, inWindow) {
try {
var allStr = "";
var curStr = "";
//alert("getXlsFromTbl");
if (inTblId != null && inTblId != "" && inTblId != "null") {
curStr = getTblData(inTblId, inWindow);
}
if (curStr != null) {
allStr += curStr;
}
else {
alert("你要导出的表不存在！");
return;
}
var fileName = getExcelFileName();
doFileExport(fileName, allStr);
}
catch(e) {
alert("导出发生异常:" + e.name + "->" + e.description + "!");
}
}
function getTblData(inTbl, inWindow) {
var rows = 0;
//alert("getTblData is " + inWindow);
var tblDocument = document;
if (!!inWindow && inWindow != "") {
if (!document.all(inWindow)) {
return null;
}
else {
tblDocument = eval(inWindow).document;
}
}
var curTbl = tblDocument.getElementById(inTbl);
var outStr = "";
if (curTbl != null) {
for (var j = 0; j < curTbl.rows.length; j++) {
for (var i = 0; i < curTbl.rows[j].cells.length; i++) {
if (i == 0 && rows > 0) {
outStr += " \t";
rows -= 1;
}
outStr += curTbl.rows[j].cells[i].innerText + "\t";
if (curTbl.rows[j].cells[i].colSpan > 1) {
for (var k = 0; k < curTbl.rows[j].cells[i].colSpan - 1; k++) {
outStr += " \t";
}
}
if (i == 0) {
if (rows == 0 && curTbl.rows[j].cells[i].rowSpan > 1) {
rows = curTbl.rows[j].cells[i].rowSpan - 1;
}
}
}
outStr += "\r\n";
}
}
else {
outStr = null;
alert(inTbl + "不存在!");
}
return outStr;
}
function getExcelFileName() {
var d = new Date();
var curYear = d.getYear();
var curMonth = "" + (d.getMonth() + 1);
var curDate = "" + d.getDate();
var curHour = "" + d.getHours();
var curMinute = "" + d.getMinutes();
var curSecond = "" + d.getSeconds();
if (curMonth.length == 1) {
curMonth = "0" + curMonth;
}
if (curDate.length == 1) {
curDate = "0" + curDate;
}
if (curHour.length == 1) {
curHour = "0" + curHour;
}
if (curMinute.length == 1) {
curMinute = "0" + curMinute;
}
if (curSecond.length == 1) {
curSecond = "0" + curSecond;
}
var fileName = "91zaojia" + "_" + curYear + curMonth + curDate + "_"
+ curHour + curMinute + curSecond + ".xls";
return fileName;
}
function doFileExport(inName, inStr) {
var xlsWin = null;
if (!!document.all("glbHideFrm")) {
xlsWin = glbHideFrm;
}
else {
var width = 6;
var height = 4;
var openPara = "left=" + (window.screen.width / 2 - width / 2)
+ ",top=" + (window.screen.height / 2 - height / 2)
+ ",scrollbars=no,width=" + width + ",height=" + height;
xlsWin = window.open("", "_blank", openPara);
}
xlsWin.document.write(inStr);
xlsWin.document.close();
xlsWin.document.execCommand(‘Saveas‘, true, inName);
xlsWin.close();
}
改代码已经验证，能够使用。调用非常easy，直接用就能够